Southwest Airlines flight WN 2121: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Sun 05:45 Ontario, Los Angeles (ONT) 4 07:55 Sky Harbor, Phoenix (PHX) 4
WN 2121 Non-stop Boeing 737-700 (73W) 1:10 Valid until 2024-01-01
Wed-Fri,Sun 05:45 Ontario, Los Angeles (ONT) 4 07:55 Sky Harbor, Phoenix (PHX) 4
WN 2121 Non-stop Boeing 737-700 (73W) 1:10 Effective 2024-01-03 through 2024-01-07
Mon,Thu,Fri 06:00 Austin (AUS) 07:50 San Jose (SJC) B
WN 2121 Non-stop Boeing 737-700 (73W) 3:50 Effective 2024-01-08 through 2024-03-04
Mon,Thu-Sun 06:00 Syracuse (SYR) 07:15 Baltimore (BWI)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2024-04-11 through 2024-05-25
Mon,Thu-Sun 06:00 Syracuse (SYR) 07:15 Baltimore (BWI)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2024-05-27 through 2024-06-03
Tue,Wed 06:15 Syracuse (SYR) 07:35 Baltimore (BWI)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2024-04-09 through 2024-05-29
Sun 06:30 Syracuse (SYR) 07:50 Baltimore (BWI)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Operates only on 2024-05-26
Sat 06:55 HARRY REID INTL AIRPORT, Las Vegas (LAS) 1 09:05 Sky Harbor, Phoenix (PHX) 4
WN 2121 Non-stop Boeing 737-700 (73W) 1:10 Operates only on 2024-01-06
Sat 08:15 William P. Hobby, Houston (HOU) 10:10 Los Angeles (LAX) 1
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2024-03-09 through 2024-04-06
Mon,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 11:40 San Antonio (SAT) A
WN 2121 Non-stop Boeing 737-700 (73W) 2:05 Valid until 2024-01-01
Wed-Fri,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 11:40 San Antonio (SAT) A
WN 2121 Non-stop Boeing 737-700 (73W) 2:05 Effective 2024-01-03 through 2024-01-07
Sat 09:45 Sky Harbor, Phoenix (PHX) 4 12:55 San Antonio (SAT) A
WN 2121 Non-stop Boeing 737-700 (73W) 2:10 Operates only on 2024-01-06
Sun 11:40 Saint Louis (STL) 2 12:50 Sky Harbor, Phoenix (PHX) 4
WN 2121 Non-stop Boeing 737-700 (73W) 3:10 Effective 2024-06-09 through 2024-08-04
Sat 12:05 Orlando (MCO) 14:20 Louisville (SDF)
WN 2121 Non-stop Boeing 737-800 (73H) 2:15 Effective 2024-06-08 through 2024-08-03
Mon,Sun 12:15 San Antonio (SAT) A 15:30 Atlanta (ATL) N
WN 2121 Non-stop Boeing 737-700 (73W) 2:15 Valid until 2024-01-01
Wed-Fri,Sun 12:15 San Antonio (SAT) A 15:30 Atlanta (ATL) N
WN 2121 Non-stop Boeing 737-700 (73W) 2:15 Effective 2024-01-03 through 2024-01-07
Tue,Wed 12:45 William P. Hobby, Houston (HOU) 14:35 Los Angeles (LAX) 1
WN 2121 Non-stop Boeing 737-800 (738) 3:50 Effective 2024-03-12 through 2024-04-03
Sat 13:30 San Antonio (SAT) A 16:40 Atlanta (ATL) N
WN 2121 Non-stop Boeing 737-700 (73W) 2:10 Operates only on 2024-01-06
Sun 13:30 Sky Harbor, Phoenix (PHX) 4 14:35 San Diego (SAN) 1
WN 2121 Non-stop Boeing 737-700 (73W) 1:05 Effective 2024-06-09 through 2024-08-04
Daily 14:35 Oakland (OAK) 2 17:05 Lihue (LIH)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 5:30 Effective 2024-08-05 through 2024-10-02
Sat 15:05 Louisville (SDF) 15:15 Midway, Chicago (MDW)
WN 2121 Non-stop Boeing 737-800 (73H) 1:10 Effective 2024-06-08 through 2024-08-03
Sun 15:10 William P. Hobby, Houston (HOU) 17:00 Los Angeles (LAX) 1
WN 2121 Non-stop Boeing 737-800 (73H) 3:50 Effective 2024-03-10 through 2024-04-07
Sun 15:25 Memphis (MEM) 18:20 Orlando (MCO)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2024-01-14 through 2024-03-03
Sun 15:25 San Diego (SAN) 1 20:15 Austin (AUS)
WN 2121 Non-stop Boeing 737-700 (73W) 2:50 Effective 2024-06-09 through 2024-08-04
Mon,Sun 16:10 Atlanta (ATL) N 16:50 Saint Louis (STL) 2
WN 2121 Non-stop Boeing 737-700 (73W) 1:40 Valid until 2024-01-01
Wed-Fri,Sun 16:10 Atlanta (ATL) N 16:50 Saint Louis (STL) 2
WN 2121 Non-stop Boeing 737-700 (73W) 1:40 Effective 2024-01-03 through 2024-01-07
Mon,Sun 17:30 Saint Louis (STL) 2 19:15 Love Field, Dallas (DAL) 1
WN 2121 Non-stop Boeing 737-700 (73W) 1:45 Valid until 2024-01-01
Wed-Fri,Sun 17:30 Saint Louis (STL) 2 19:15 Love Field, Dallas (DAL) 1
WN 2121 Non-stop Boeing 737-700 (73W) 1:45 Effective 2024-01-03 through 2024-01-07
Sun 19:05 Orlando (MCO) 21:20 Baltimore (BWI)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2024-01-14 through 2024-03-03
Fri 19:50 William P. Hobby, Houston (HOU) 21:45 Denver (DEN)
WN 2121 Non-stop Boeing 737-700 (73W) 2:55 Operates only on 2024-07-05
Non-Direct Flights:
Mon,Sun 05:45 Ontario, Los Angeles (ONT) 4 11:40 San Antonio (SAT) A
WN 2121 1-stop Boeing 737-700 (73W) 3:55 Valid until 2024-01-01
Wed-Fri,Sun 05:45 Ontario, Los Angeles (ONT) 4 11:40 San Antonio (SAT) A
WN 2121 1-stop Boeing 737-700 (73W) 3:55 Effective 2024-01-03 through 2024-01-07
Sat 06:55 HARRY REID INTL AIRPORT, Las Vegas (LAS) 1 12:55 San Antonio (SAT) A
WN 2121 1-stop Boeing 737-700 (73W) 4:00 Operates only on 2024-01-06
Mon,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 15:30 Atlanta (ATL) N
WN 2121 1-stop Boeing 737-700 (73W) 4:55 Valid until 2024-01-01
Wed-Fri,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 15:30 Atlanta (ATL) N
WN 2121 1-stop Boeing 737-700 (73W) 4:55 Effective 2024-01-03 through 2024-01-07
Sat 09:45 Sky Harbor, Phoenix (PHX) 4 16:40 Atlanta (ATL) N
WN 2121 1-stop Boeing 737-700 (73W) 4:55 Operates only on 2024-01-06
Sun 11:40 Saint Louis (STL) 2 14:35 San Diego (SAN) 1
WN 2121 1-stop Boeing 737-700 (73W) 4:55 Effective 2024-06-09 through 2024-08-04
Sat 12:05 Orlando (MCO) 15:15 Midway, Chicago (MDW)
WN 2121 1-stop Boeing 737-800 (73H) 4:10 Effective 2024-06-08 through 2024-08-03
Mon,Sun 12:15 San Antonio (SAT) A 16:50 Saint Louis (STL) 2
WN 2121 1-stop Boeing 737-700 (73W) 4:35 Valid until 2024-01-01
Wed-Fri,Sun 12:15 San Antonio (SAT) A 16:50 Saint Louis (STL) 2
WN 2121 1-stop Boeing 737-700 (73W) 4:35 Effective 2024-01-03 through 2024-01-07
Sun 13:30 Sky Harbor, Phoenix (PHX) 4 20:15 Austin (AUS)
WN 2121 1-stop Boeing 737-700 (73W) 4:45 Effective 2024-06-09 through 2024-08-04
Sun 15:25 Memphis (MEM) 21:20 Baltimore (BWI)
WN 2121 1-stop Boeing 737 MAX 8 (7M8) 4:55 Effective 2024-01-14 through 2024-03-03
Mon,Sun 16:10 Atlanta (ATL) N 19:15 Love Field, Dallas (DAL) 1
WN 2121 1-stop Boeing 737-700 (73W) 4:05 Valid until 2024-01-01
Wed-Fri,Sun 16:10 Atlanta (ATL) N 19:15 Love Field, Dallas (DAL) 1
WN 2121 1-stop Boeing 737-700 (73W) 4:05 Effective 2024-01-03 through 2024-01-07
Mon,Sun 05:45 Ontario, Los Angeles (ONT) 4 15:30 Atlanta (ATL) N
WN 2121 2-stop Boeing 737-700 (73W) 6:45 Valid until 2024-01-01
Wed-Fri,Sun 05:45 Ontario, Los Angeles (ONT) 4 15:30 Atlanta (ATL) N
WN 2121 2-stop Boeing 737-700 (73W) 6:45 Effective 2024-01-03 through 2024-01-07
Sat 06:55 HARRY REID INTL AIRPORT, Las Vegas (LAS) 1 16:40 Atlanta (ATL) N
WN 2121 2-stop Boeing 737-700 (73W) 6:45 Operates only on 2024-01-06
Mon,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 16:50 Saint Louis (STL) 2
WN 2121 2-stop Boeing 737-700 (73W) 7:15 Valid until 2024-01-01
Wed-Fri,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 16:50 Saint Louis (STL) 2
WN 2121 2-stop Boeing 737-700 (73W) 7:15 Effective 2024-01-03 through 2024-01-07
Sun 11:40 Saint Louis (STL) 2 20:15 Austin (AUS)
WN 2121 2-stop Boeing 737-700 (73W) 8:35 Effective 2024-06-09 through 2024-08-04
Mon,Sun 12:15 San Antonio (SAT) A 19:15 Love Field, Dallas (DAL) 1
WN 2121 2-stop Boeing 737-700 (73W) 7:00 Valid until 2024-01-01
Wed-Fri,Sun 12:15 San Antonio (SAT) A 19:15 Love Field, Dallas (DAL) 1
WN 2121 2-stop Boeing 737-700 (73W) 7:00 Effective 2024-01-03 through 2024-01-07
Mon,Sun 05:45 Ontario, Los Angeles (ONT) 4 16:50 Saint Louis (STL) 2
WN 2121 3-stop Boeing 737-700 (73W) 9:05 Valid until 2024-01-01
Wed-Fri,Sun 05:45 Ontario, Los Angeles (ONT) 4 16:50 Saint Louis (STL) 2
WN 2121 3-stop Boeing 737-700 (73W) 9:05 Effective 2024-01-03 through 2024-01-07
Mon,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 19:15 Love Field, Dallas (DAL) 1
WN 2121 3-stop Boeing 737-700 (73W) 9:40 Valid until 2024-01-01
Wed-Fri,Sun 08:35 Sky Harbor, Phoenix (PHX) 4 19:15 Love Field, Dallas (DAL) 1
WN 2121 3-stop Boeing 737-700 (73W) 9:40 Effective 2024-01-03 through 2024-01-07
Mon,Sun 05:45 Ontario, Los Angeles (ONT) 4 19:15 Love Field, Dallas (DAL) 1
WN 2121 4-stop Boeing 737-700 (73W) 11:30 Valid until 2024-01-01
Wed-Fri,Sun 05:45 Ontario, Los Angeles (ONT) 4 19:15 Love Field, Dallas (DAL) 1
WN 2121 4-stop Boeing 737-700 (73W) 11:30 Effective 2024-01-03 through 2024-01-07
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 2121: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

07:55
Sky Harbor, Phoenix (PHX) 4
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

07:55
Sky Harbor, Phoenix (PHX) 4
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
06:00
Austin (AUS)

07:50
San Jose (SJC) B
Effective 2024-01-08 through 2024-03-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:50, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
06:00
Syracuse (SYR)

07:15
Baltimore (BWI)
Effective 2024-04-11 through 2024-05-25
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
06:00
Syracuse (SYR)

07:15
Baltimore (BWI)
Effective 2024-05-27 through 2024-06-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
06:15
Syracuse (SYR)

07:35
Baltimore (BWI)
Effective 2024-04-09 through 2024-05-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
06:30
Syracuse (SYR)

07:50
Baltimore (BWI)
Operates only on 2024-05-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
06:55
HARRY REID INTL AIRPORT, Las Vegas (LAS) 1

09:05
Sky Harbor, Phoenix (PHX) 4
Operates only on 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:15
William P. Hobby, Houston (HOU)

10:10
Los Angeles (LAX) 1
Effective 2024-03-09 through 2024-04-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

11:40
San Antonio (SAT) A
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

11:40
San Antonio (SAT) A
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
09:45
Sky Harbor, Phoenix (PHX) 4

12:55
San Antonio (SAT) A
Operates only on 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
11:40
Saint Louis (STL) 2

12:50
Sky Harbor, Phoenix (PHX) 4
Effective 2024-06-09 through 2024-08-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:05
Orlando (MCO)

14:20
Louisville (SDF)
Effective 2024-06-08 through 2024-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
12:15
San Antonio (SAT) A

15:30
Atlanta (ATL) N
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:15
San Antonio (SAT) A

15:30
Atlanta (ATL) N
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:45
William P. Hobby, Houston (HOU)

14:35
Los Angeles (LAX) 1
Effective 2024-03-12 through 2024-04-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:50, non-stop
Boeing 737-800 (738)
Southwest Airlines WN2121
13:30
San Antonio (SAT) A

16:40
Atlanta (ATL) N
Operates only on 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
13:30
Sky Harbor, Phoenix (PHX) 4

14:35
San Diego (SAN) 1
Effective 2024-06-09 through 2024-08-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:05, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
14:35
Oakland (OAK) 2

17:05
Lihue (LIH)
Effective 2024-08-05 through 2024-10-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
15:05
Louisville (SDF)

15:15
Midway, Chicago (MDW)
Effective 2024-06-08 through 2024-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
15:10
William P. Hobby, Houston (HOU)

17:00
Los Angeles (LAX) 1
Effective 2024-03-10 through 2024-04-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:50, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
15:25
Memphis (MEM)

18:20
Orlando (MCO)
Effective 2024-01-14 through 2024-03-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
15:25
San Diego (SAN) 1

20:15
Austin (AUS)
Effective 2024-06-09 through 2024-08-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
16:10
Atlanta (ATL) N

16:50
Saint Louis (STL) 2
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
16:10
Atlanta (ATL) N

16:50
Saint Louis (STL) 2
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
17:30
Saint Louis (STL) 2

19:15
Love Field, Dallas (DAL) 1
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
17:30
Saint Louis (STL) 2

19:15
Love Field, Dallas (DAL) 1
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
19:05
Orlando (MCO)

21:20
Baltimore (BWI)
Effective 2024-01-14 through 2024-03-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
19:50
William P. Hobby, Houston (HOU)

21:45
Denver (DEN)
Operates only on 2024-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737-700 (73W)
Non-Direct Flights:
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

11:40
San Antonio (SAT) A
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

11:40
San Antonio (SAT) A
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
06:55
HARRY REID INTL AIRPORT, Las Vegas (LAS) 1

12:55
San Antonio (SAT) A
Operates only on 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

15:30
Atlanta (ATL) N
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

15:30
Atlanta (ATL) N
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
09:45
Sky Harbor, Phoenix (PHX) 4

16:40
Atlanta (ATL) N
Operates only on 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
11:40
Saint Louis (STL) 2

14:35
San Diego (SAN) 1
Effective 2024-06-09 through 2024-08-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:05
Orlando (MCO)

15:15
Midway, Chicago (MDW)
Effective 2024-06-08 through 2024-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:10, 1-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
12:15
San Antonio (SAT) A

16:50
Saint Louis (STL) 2
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:35, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:15
San Antonio (SAT) A

16:50
Saint Louis (STL) 2
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:35, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
13:30
Sky Harbor, Phoenix (PHX) 4

20:15
Austin (AUS)
Effective 2024-06-09 through 2024-08-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:45, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
15:25
Memphis (MEM)

21:20
Baltimore (BWI)
Effective 2024-01-14 through 2024-03-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:55, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
16:10
Atlanta (ATL) N

19:15
Love Field, Dallas (DAL) 1
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:05, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
16:10
Atlanta (ATL) N

19:15
Love Field, Dallas (DAL) 1
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:05, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

15:30
Atlanta (ATL) N
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:45, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

15:30
Atlanta (ATL) N
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 6:45, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
06:55
HARRY REID INTL AIRPORT, Las Vegas (LAS) 1

16:40
Atlanta (ATL) N
Operates only on 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:45, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

16:50
Saint Louis (STL) 2
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:15, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

16:50
Saint Louis (STL) 2
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:15, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
11:40
Saint Louis (STL) 2

20:15
Austin (AUS)
Effective 2024-06-09 through 2024-08-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 8:35, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:15
San Antonio (SAT) A

19:15
Love Field, Dallas (DAL) 1
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:00, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
12:15
San Antonio (SAT) A

19:15
Love Field, Dallas (DAL) 1
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:00, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

16:50
Saint Louis (STL) 2
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:05, 3-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

16:50
Saint Louis (STL) 2
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 9:05, 3-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

19:15
Love Field, Dallas (DAL) 1
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:40, 3-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
08:35
Sky Harbor, Phoenix (PHX) 4

19:15
Love Field, Dallas (DAL) 1
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 9:40, 3-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

19:15
Love Field, Dallas (DAL) 1
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 11:30, 4-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
05:45
Ontario, Los Angeles (ONT) 4

19:15
Love Field, Dallas (DAL) 1
Effective 2024-01-03 through 2024-01-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 11:30, 4-stop
Boeing 737-700 (73W)
This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Love Field, Dallas (DAL)
  • Atlanta (ATL) - Saint Louis (STL)
  • Austin (AUS) - San Jose (SJC)
  • HARRY REID INTL AIRPORT, Las Vegas (LAS) - Atlanta (ATL)
  • HARRY REID INTL AIRPORT, Las Vegas (LAS) - San Antonio (SAT)
  • HARRY REID INTL AIRPORT, Las Vegas (LAS) - Sky Harbor, Phoenix (PHX)
  • Louisville (SDF) - Midway, Chicago (MDW)
  • Memphis (MEM) - Baltimore (BWI)
  • Memphis (MEM) - Orlando (MCO)
  • Oakland (OAK) - Lihue (LIH)
  • Ontario, Los Angeles (ONT) - Atlanta (ATL)
  • Ontario, Los Angeles (ONT) - Love Field, Dallas (DAL)
  • Ontario, Los Angeles (ONT) - Saint Louis (STL)
  • Ontario, Los Angeles (ONT) - San Antonio (SAT)
  • Ontario, Los Angeles (ONT) - Sky Harbor, Phoenix (PHX)
  • Orlando (MCO) - Baltimore (BWI)
  • Orlando (MCO) - Louisville (SDF)
  • Orlando (MCO) - Midway, Chicago (MDW)
  • Saint Louis (STL) - Austin (AUS)
  • Saint Louis (STL) - Love Field, Dallas (DAL)
  • Saint Louis (STL) - San Diego (SAN)
  • Saint Louis (STL) - Sky Harbor, Phoenix (PHX)
  • San Antonio (SAT) - Atlanta (ATL)
  • San Antonio (SAT) - Love Field, Dallas (DAL)
  • San Antonio (SAT) - Saint Louis (STL)
  • San Diego (SAN) - Austin (AUS)
  • Sky Harbor, Phoenix (PHX) - Atlanta (ATL)
  • Sky Harbor, Phoenix (PHX) - Austin (AUS)
  • Sky Harbor, Phoenix (PHX) - Love Field, Dallas (DAL)
  • Sky Harbor, Phoenix (PHX) - San Antonio (SAT)
  • Sky Harbor, Phoenix (PHX) - San Diego (SAN)
  • Syracuse (SYR) - Baltimore (BWI)
  • William P. Hobby, Houston (HOU) - Denver (DEN)
  • William P. Hobby, Houston (HOU) - Los Angeles (LAX)
All Southwest Airlines flights
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